Petcock-valve.



T. H. GOULDING.

PETGOCK VALVE.

APPLICATION FILED mu. 3, 1912.

Wrr'm asap-s m A i Patented Mar 3 1914 2 snnms-sannw 1 lNVE'NTOR 750/7as Goa/577 7/ Wu His brveys. V

THOMS H. GOULDING, OF ST. PAUL, MINNESOTA.

PETCOCK-VALVE.

Specifieation of Letters Patent.

Patented Mar. 3, 1914.

Application filed January 3, 1912. Serial no. eeaaza To all whom it mayconcern Be it known that I, THOMAS H. Gounnme, a citizen of the UnitedStates, residing at St. Paul, in the county of Ramsey and State ofMinnesota, have invented certain new and useful Improvements inPetcock-Valves, of which the following is a specification.

My invention relates to improvements in gage cocks for water columns forboilers, its object being particularly to provide improvements in theconstruction of the cock facilitating the easy cleaning of the samewhile ,the boiler is alive.

To this end the invention consists in the construction, combination, andarrangement of parts hereinafter described and claimed.

In the accompanying drawings forming partof this specification, Figure 1is a side elevation of a water column fitted with my improved cocks;Fig. 2 is a top View of the cock with the supporting column wall insection; Fig. 3 shows a water glass arranged in connection with a pairof cocks; Figs. 4- and 5 are details of a plug used in connection withthe gage cock; Figs. 6 and 7 are detail views of a plug formed with abushing for the controlling valve of the cock, Fig. 7 being shown partlyin section; Fig. 8 is a section on line m-m of Fig. 3; Figs. 9 and 10are details of a washer forming part of the invention; Figs. 11 and 12are details of a discharge tube forming part of the cock; Fig. 13 is adetail View of a controlling valve forming part of the invention; Fig.14; is a view looking toward the inner end of the valve; Fig. 15 is aview looking toward the outer end of the valve; and Fig. 16 is an outerend view of the cock shown in connection with a water glass illustratedin section.

Referring to the drawings A represents an ordinary water columnconnected with a boiler, not shown, by the pipes 2 and 3. I show in Fig.1 of the drawings three of my improved cocks tapped into the column, tobe used to determine the level of the water in the column. The inner end4 of each cock is threaded to permit of its being screwed into theopening 5 in the side wall of the column. Extending longitudinallythrough the body of the cock is a straight unobstructed bore or conduit6, a discharge pipe 7 being shown threaded in the outer end of theconduit. Branching outward laterally from the conduit 6 is an inclinedboss having a bore or opening 8 in the outer end of whichis shownthreaded a plug 9. Havmg screw threaded traveling support 10 through theplug is a valve stem 11. said stem at its outer end supporting a handle12, and at its inner end supporting a valve 13.

A seat 141 for the valve 13 is formed at the junction of the conduit 6and valve opening 8. The valve 13 is of a. diameter corresponding to thediameter of the bore or opening 8, and coiiperates with the seat 14 toclose communication through the bore of the body. When, however, thevalve 13 is moved to open position it closes the bore 8 againstcommunication with the bore of the body, and thus prevents accumulationof sediment in the bore 8. Seated in the valve opening 8 adjacent to theinner side of the plug 9 is a disk 15 through which disk the valve stemslides. The inner side 16 of the plug 9 is cut away to form a holder forsuit able packing intermediate of the plug and disk. The cock may beformed with an opening 17 to receive one end of the water glass 18 asshown in Fig. 3, the opening 17 communicating with the interior of thecock. When a water glass is not used the opening 17 may be closed by aplug 19 and where the water glass is used the discharge pipe 7 may beremoved and the outer end of the conduit 6 closed by a plug 20.

Where it is desired to clean out the sediment which is ordinarilydeposited in the inner end of the conduit 6 the valve 13 will first beseated as shown in Fig. 8 to close the conduit 6 and prevent any escapeof water from the column. The discharge pipe 7 or plug 20, as the casemay be, will then be removed and "an ordinary cleaning tool secured inthe outer end of the conduit 6.

The valve 13 then being carried to open position as indicated by dottedlines in Fig. 8, the cleaning tool may be used in the ordinary manner toclean out the cock. When the same has been thoroughly cleaned the valve13 may be again seated to close the conduit 6 and allow the removal ofthe cleaning tool without the escape of any water from the column. Wherethe discharge tube 7 is employed without the water tube the valx e 13may be kept seated, and opened where it is desired to determine theamount of water in the column or for the purpose of cleaning out thecock, as hereinbefore described. Where the water tube is used and theouter end of the tube 6 closed by a plug, the valve 13 may be left opento ice allow the water to pass into the tube and only closed inconnection with the insertion or removal of the cleaning tool.

I claim as my invention:

1. A gage cock the body of which is formed with a straight unobstructedbore extending throughout its length to provide a free passagetherethrough, an inclined boss projecting from one side'of the body andhaving a bore in communication with the straight bore of the body, avalve seat formed in the bore of the body opposite to the inner end ofthe bore of said boss, a plug mounted in the outer end of said boss avalve stem supported by said plug, and a valve arranged at.the inner endof said stem adapted to cooperate with said seat to close communicationthrough the bore of the body, said Valve being of a diametercorresponding to the diameter of the bore of the boss and-serving in theopen position of the valve to close the bore of the boss againstcommunication with the bore of the body to prevent accumulation ofsediment in the bore of the boss.

2. A gage cook the body of which is formed with a straight unobstructedbore extending throughout its length to provide a free passagetherethrough, the outer end of said bore being threaded to permit theinterchangeable application thereto of a discharge tube or closure plug,said body also having a lateral opening in communication with said bore,a plug seated in said opening to close the same, an inclined bossprojecting from one side of the body and having a bore in communicationwith the straight bore of the body, a valve seat formed in the bore ofthe body opposite to the inner end of the bore of said boss, a plugmounted in the outer end of said boss,

a valve stem supported by said plug, and v a valve arranged at the innerend of said stem adapted to cooperate with said seat to closecommunication through the bore of the body, said valve being of adiameter corresponding to the diameter of the bore of the boss andserving in the open position of the valve to close the bore of the bossagainst communication with the bore of the body to prevent accumulationof sediment in the bore of the boss.

In testimony whereof I afiix my signature in presence of two Witnesses.

' THOMAS H. GOULDING.

Witnesses:

' H. SWANSON,

H. S. JoHNsoN.

